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ID 295
本文ファイル
著者
Ueda, Hiroaki
NDC
動物学
抄録(英)
In order to determine the sex-determining mechanism in Bufo viridis, males were sex-reversed into females by castration and subsequent administration with estrogen, and mated with normal males to obtain the offspring. Of the 25 castrated and estrogen-injected males, 17 lived for more than 15 months. While seven of these toads had regenerated testes and normal BIDDER'S organs, the other ten had well-developed ovaries transformed from their BIDDER'S organs, although the oviducts were defective in five of them. By pituitary injection, four of the remaining five sex-reversed males laid 473,62,5368 and 7316 eggs. By insemination with sperm of regenerated testes, 822 eggs attained completion of metamorphosis. Among 784 offspring, there were 197 females and 587 (74.9%) males. These numbers seem to show that the male in Bufo viridis is heterogametic (XY) and YY toads produced from matings between sexreversed genetic males (XY) and normal males (XY) can survive and become males.
掲載誌名
Scientific report of the Laboratory for Amphibian Biology
10巻
開始ページ
155
終了ページ
164
出版年月日
1990-03
出版者
Institute for Amphibian Biology, Hiroshima University
寄与者
国立情報学研究所
作成年月日
2006-03-21
ISSN
0386-3166
NCID
SelfDOI
言語
英語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
理学研究科
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